Academics
Diploma Programme — Maths, Physics, Chemistry, Computer Science, English, History
Full A* coverage — Computer Science, Maths, Physics, Economics, Further Maths
Hong Kong Diploma of Secondary Education — Physics, Chemistry, Biology, Economics, ICT
General Certificate of Secondary Education — Maths, Physics, Chemistry, Biology, Computer Science
Advanced Placement — Maths, Physics, Chemistry, Biology, Computer Science
Scottish Qualifications Authority — Maths, Physics, Chemistry, Biology, Computer Science
Irish Leaving Certificate — Maths, Physics, Chemistry, Biology, Computer Science
Programming
Systems programming — C++20/23, templates, concurrency, standard library
Modern Java — OOP, collections, concurrency, JVM internals, NIO, testing, build tools
Deep reference — async, types, internals, decorators, descriptors, packaging, protocols
Systems programming — ownership, lifetimes, unsafe, async, channels, traits, Cargo, macros
Dart 3 & Flutter — pattern matching, sealed classes, FFI, state management, testing
Infrastructure
Linux administration — CLI, scripting, file systems, LVM, disk partitioning, processes, networking
Computer networking — OSI, TCP/UDP, DNS, BGP, routing protocols, HTTP/2/3, TLS, WebSockets
Databases — relational theory, normalization, SQL, indexing, transactions, NoSQL, migrations
Information security — cryptography, OAuth, OWASP, pen testing, supply chain, forensics
NAS administration — ZFS deep-dive, encryption, sharing, replication, apps, monitoring
Hardware optimization — CPU, memory, GPU, storage tuning, PSU, BIOS, cooling, stress testing
Tools & Research
Version control — objects, branching, rebasing, hooks, signing, advanced commands, CI/CD
Algorithm design — complexity, sorting, trees, graphs, DP, greedy, advanced data structures
Graduate-level — Bayesian inference, probability spaces, measure theory
Cross-topic — dev environment, productivity, open source, career guidance
Open-source licenses — GPL, MIT, Apache, compliance, CLA, DCO